Official NHA Assessment

Race 6: RACING240 PINNACLE STAKES (Open to all horses)

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Line Horse
Bournemouth
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
2 / 7
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Bad Medicine         3    59.5    1    0.00     3.5   100   91           91    -9
2    Bournemouth          5    61.0    2    0.50     0.0   108   108          108   +0
3    Anatolian Silver     3    52.0    3    2.00     3.5   78    81           81    +3
4    Home Reef            3    55.0    4    2.75     3.5   87    85           85    -2
5    Juan Carlos          7    56.5    5    3.00     0.0   91    95           95    +4
6    Key Worker           3    51.5    6    21.25    3.5   84    75           75    -9
7    Twenty Drachma's     4    52.5    7    99.99    1.0   78    82           82    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bad Medicine 100 100 91 +9 3.5 -
2 Bournemouth Line 108 108 108 ✓ Match 0.0
3 Anatolian Silver 78 78 81 -3 3.5 -
4 Home Reef 87 87 85 +2 3.5 -
5 Juan Carlos 91 91 95 -4 0.0 -
6 Key Worker 84 82 75 +7 3.5 -
7 Twenty Drachma's 78 78 82 -4 1.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points